Neighbor-joining tree based on amino acid sequences ofTat and Athila group reverse transcriptases. The tree is rooted to six elements from the Tat group (from top to bottom): Tat4-1, F26H6, Cinful, Vulgar,Rire2, and Grande1-4). The numbers on the branches indicate bootstrap support for 100 replicates. Brackets indicate the species from which the elements originated. Branches indicating previously described elements are labeled. Unlabeled branches represent reverse transcriptases from the following species (from top to bottom): sycamore (syc4-3, syc2-3, syc4-2,syc4-7); cotton (cot8-7, cot5-3,cot8-6); lily (TfcII elements AF219190, AF219217,AF219200); rice (rice2-17, rice5-2,rice2-10, rice1, rice); sorghum (sorg4-3, sorg5-6, sorg5-4,sorg5-5, sorg5-2, sorg5-8); tobacco, tomato, and potato (tom4-10, tom10-16, tob1,tob2-2, tob5-3, tob4-1, tom4-4,pot8-8, pot8-3, pot8-4, pot8-5,tom10-4, pot8-10, pot5-1); oat (oat6-7, oat6-1, oat6-8); rye (rye5-4, rye5-2, rye3-4, rye4-4); barley (bar7, bar2-12, bar2-19,bar2-4, BAGY-2); wheat (wheat5-3,wheat8-11, wheat8-2, wheat3-1,wheat8-5); Arabidopsis thaliana (La9-5, T17A11, hau8-3, Athila5-2 F23M2, La9-7,La9-9, Athila1-1 La8-1, La9-6, T16I21, T13D4, Athila9-1 T24G23, F18P14, hau7-2, T13E11, F7B19, hau8-4); pea and favabean (pea1,favabean1, favabean2, pea8-1,pea9-1); soybean (will8-2, hark5,will, L859-3, hark2, will2,hark5-1, L859-6, L859-2, L852will8-3, L858-2).
